*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Seat belts
The contact owns a 2009 Mazda CX-9. The contact stated that while inspecting the vehicle it was discovered that the locking mechanism for both the 3 row driver side and passenger side seat belts locking mechanisms was not present. The cause of the failure was not determined. The manufacturer and local dealer were not contacted. The failure mileage was 217,400.
Jun 2, 2026 · 217,400 milesSuspension
The contact owns a 2009 Mazda CX-9. The contact stated that while driving at an undisclosed speed and depressing the brake pedal, the vehicle made an abnormal sound. The contact stated the brake pads and rotors were replaced; however, the abnormal sound persisted. The contact called and informed the dealer of the issue however, the vehicle was not diagnosed or repaired. The contact referenced NHTSA Campaign Number: 15V451000 (Suspension) as a possible solution for the failure; however, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.
Dec 15, 2023 · 120,000 milesTires
October 2021 purchase 2 Cooper Evolution H/T All-Season 245/60R18. With less than 8k miles, both tires developed deformities/bulging on upper sidewal/tread,line intersect, causing vehicle to shimmy. The dot #'s of both tires are up83 1LE 1021 . Tires have a 60k warranty. Cooper tires issues two safety recalls due to sidewall deformities on this tire model, same plant, but in a different sizes. February 26, 2021 cooper tires has issued yet another safety recall on this exact model tire but in a different size. The 2 cooper evolution HT tires seem to also have sidewall defects. I feel that the bulging tires are a safety hazard due to manufacturing defects. I would like to have my 245/60r18…
Sep 9, 2022Engine and engine cooling › Cooling system › Pump
The contact owns a 2009 Mazda CX9. The contact stated while driving at an undisclosed speed, the hot engine temperature warning light illuminated. The contact pulled over and added coolant to the reservoir and waited for the engine to cool down. The warning light remained illuminated. The contact was concerned that the failure was related to the water pump on the vehicle not working as needed. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.
Sep 19, 2021 · 120,000 milesTires
WHILE DRIVING UNDER NORMAL, DRY CONDITIONS ON HIGHWAY 540 IN NORTH CAROLINA, MY RIGHT REAR COPPER CS5 ULTRA TOURING TIRE CATASTROPHICALLY FAILED AND SEPARATED THE TREAD COMPLETELY FROM THE SIDEWALL OF THE TIRE ON MY 2009 MAZDA CX-9.
Feb 3, 2021Power train
WHILE PULLING A SMALL TRAILER THE CAR STOPPED UNABLE TO DRIVE THE CAR ACCORDING TO THE MECHANIC THE TRANSFER CASE SHATTERED INTO PIECES
Jun 23, 2020 · 150,000 milesService brakes
MY BRAKES STARTED FEELING SPONGY BUT HARD TO PUSH WHEN I WOULD TRY TO COME TO A STOP. IT FELT AT TIMES LIKE MY CAR WASN'T GOING TO STOP. I STOPPED DRIVING IT AND THE BRAKE BOOSTER WAS REPLACED. AT THAT TIME, I LOST BRAKES COMPLETELY. THE BRAKE PEDDLE GOES ALL THE WAY TO THE FLOOR WHEN PRESSED. HOPEFULLY THE BOOSTER IS A BAD ONE.
Jun 26, 2020 · 115,000 milesService brakes
I HAVE A PROBLEM WITH THE BRAKE LIGHT SWITCH. IT WORKS FOR AWHILE AND THEN STOPS WORKING. WHEN I PRESS THE BRAKE PEDAL THE BRAKE LIGHT MAY OR MY NOT COME ON AND THAT IS WHILE SITTING STILL OR WHILE THE CAR IS MOVING. I HAVE REPLACED THE SWITCH SEVERAL TIMES.
Dec 28, 2019 · 135,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.